<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>02_姓名案例_methods实现</title>
    <!-- 引入Vue -->
    <script type="text/javascript" src="../js/vue.js"></script>

</head>
<body>
    <!-- 准备好一个容器 -->
    <div id="root">
        姓：<input type="text" v-model="firstName"></input>    <br>  <br>
        名：<input type="text" v-model="lastName"></input>    <br>  <br>  
        姓名：<span>{{fullName()}}</span>
    </div>

</body>
    <script type="text/javascript">
        new Vue({
            el:'#root',
            data:{
               firstName:'张',
               lastName: '三' 
            },
            methods:{
                fullName(){
                    return this.firstName + '-' + this.lastName
                }
            }
        })       

    </script>

</html>